Parts I purchased today for my 383 budget build any suggestions

TODAYS PURCHASE
I purchased 68 383 block with all of these parts im trying to figure out what compression can somebody take a look and give me any suggestions
1968 383 block and Main caps .30 over- Fresh Bore- Steel crank -Good
Sealed power Cast Pistons Part #366NP .030 New reconditioned LY rods and bolts
Edelbrock performer RPM Intake -New
Indy Aero 452 heads 219-1.88 valves- New
Cloyes double roller timing chain- New
Edelbrock 750 cfm Carb- New
stock lifters-Old
Melling High volume oil pump-New
High Volume water pump-New
aluminum water pump housing -New
Comp Cam 21-242-4 and Lifters-New - This cam will not work with my 323 gears it needs a 3000-3500 stall and 391 gears
Valley tray-New


THE PARTS ALREADY ON THE CAR

15" WHEELS Big Bolt Pattern
Front disc Brakes
8.25 with 323 gears
26" tire
I am staying with 323 gears
The cam that came with all of these parts is a comp cams- 21-242-4 This Cam needs a 3000-3500 stall with a 391 gear
I spoke with Comp Cams they suggested this cam Extreme Energy 268-H i told them i thought the heads might be 9-1 or 9.5-1 i am not sure ?

PARTS NEEDED
stock big block valve covers
power steering brackets
Mopar electric ignition and distributor
727 torque flite
kick down linkage
schumacher motor mounts and torque strap